Yannis Guyon
a80954a1d9
Reword img2webp synopsis command line
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See https://bugs.chromium.org/p/webp/issues/detail?id=549
Change-Id: I75562d2ad021d8ec107eb4ced5b28e0abf373324
2022-01-05 10:15:28 +01:00
Pascal Massimino
906c1fcd61
make ImgIoUtilReadFile use WebPMalloc instead of malloc
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This is a minor technical change in API in case a special allocator
was used in WebPMalloc.
Change-Id: Idb78a9150d006f158c1a9538525097749e42e7f7
2020-10-16 15:40:13 +02:00
James Zern
b6284d8247
img2webp: add help note about arguments from a file
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this was added in:
94a8377bhttps://groups.google.com/a/webmproject.org/d/msg/webp-discuss/DJs-w_-Id6o/svFXs2CqBgAJ
BUG=webp:101
Change-Id: I2944d1fb1ed3030c356960be2a6c8de15a79311f
2018-10-26 06:16:56 +00:00
Yannis Guyon
9cf9841b5e
libwebp: Unicode command tools on Windows
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Define macros in examples/unicode.h to use Unicode argv
on Windows. Keep char everywhere on Unix since it handles
UTF-8 without any change.
Impact:
- All fopen () and SHCreateStreamOnFile(),
- All fprintf() printing file paths,
- All strcmp() used with "-",
- File path parsing,
- Gif reading.
Concerned executables from examples/ and extras/:
anim_diff, anim_dump, vwebp, vwebp_sdl,
cwebp, dwebp, gif2webp, img2webp,
webpmux, webpinfo, webp_quality, get_disto
When compiled on Windows with Unicode enabled, webpmux and
img2webp will not work when used with an argument file and
will print "Reading arguments from a file is a feature
unavailable with Unicode binaries."
BUG=webp:398
Change-Id: Ic55d222a3ce1a715f9c4cce57ecbe2705d5ce317
2018-10-17 13:19:40 +02:00
Pascal Massimino
64a57d0587
add -version option to anim_dump,anim_diff and img2webp
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This is to harmonize the -h/-version options on all our examples.
+ added GetAnimatedImageVersions() method to anim_util.*
Change-Id: I2304a1c29e310682e97f236d3867274a192a7a09
2018-04-03 11:46:17 -07:00
skal
94a8377b3e
extract the command-line parsing helpers to example_util
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+ make img2webp tool use the text-file parsing option too.
Change-Id: I1976e651bbe8b4701abceba89e054b4fb3c35696
2018-02-08 08:11:31 +00:00
James Zern
0d8e05880c
img2webp: treat -loop as a no-op w/single images
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or in cases where duplicates have been reduced to one
Change-Id: I145cd61b6792b021617f1234f0ba36e2a3128d84
2017-01-25 08:17:39 +00:00
James Zern
6451709e72
img2webp,get_disto: fix image decode w/WIC builds
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similar to cwebp, attempt ReadPictureWithWIC() first
Change-Id: Ifb83aaa457be59c95b201bf8bd6b0877a6a253ed
2017-01-24 15:12:08 -08:00
Pascal Massimino
bded7848ea
img2webp: fix default -lossless value and use pic.argb=1
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Change-Id: I0e5350928c1e58e0901303ee979fb4587f25d6bc
2016-12-02 13:19:02 +01:00
Pascal Massimino
03f40955a3
img2webp: convert a sequence of images to an animated webp
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Usage:
img2webp [file-level options] [image files...] [per-frame options...]
File-level options (only used at the start of compression):
-min_size ............ minimize size
-loop <int> .......... loop count (default: 0, = infinite loop)
-kmax <int> .......... maximum number of frame between key-frames
(0=only keyframes)
-kmin <int> .......... minimum number of frame between key-frames
(0=disable key-frames altogether)
-mixed ............... use mixed lossy/lossless automatic mode
-v ................... verbose mode
-h ................... this help
Per-frame options (only used for subsequent images input):
-d <int> ............. frame duration in ms (default: 100)
-lossless ........... use lossless mode (default)
-lossy ... ........... use lossy mode
-q <float> ........... quality
-m <int> ............. method to use
example: img2webp -loop 2 in0.png -lossy in1.jpg
-d 80 in2.tiff -o out.webp
Change-Id: I23771b90eaf0660f420d7ffd304e704155386286
2016-12-02 11:44:17 +01:00
